Nat Geo HD

From the awe-inspiring technology that's bringing Barcelona's iconic Sagrada Familia to completion, to the secrets of Seville's record-breaking wooden sun shade. (3 of 6) 7+.

While the Canadian troops distracted German forces, the Allies mounted an amphibious assault on the last Nazi stronghold guarding Antwerp port - Walcheren Island.

The Allies get trapped behind Nazi lines when General Montgomery's ambitious Operation Market Garden fails to end the war. A fight for survival begins.

A mid-air explosion rocks Southwest Airlines 1380. While pilots struggle to regain control, flight attendants make a horrifying discovery. (S20, ep 5) 7+.

A private jet shuttling business passengers to Ohio slams into an apartment building, instantly killing everyone on board. What went wrong? 7+.

Landing at one of the world's most challenging airports, a passenger plane comes in like a fighter jet, skids off the runway and bursts into flames. 7+.

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

After loading up 112 cars, veteran engineer Rob and rookie conductor Keri must guide their two-kilometer train into the heart of the Rocky Mountains. (S1, ep 3) 7+.

Engineer Jordy and conductor James are hauling a high-priority shipment to Alberta, but in the Rockies, severe rockslides threaten to wash out the tracks. (S1, ep 4) 7+.

Follow some of the world's most extraordinary railway journeys from above and on the ground, taking an adventure of a lifetime. 7+.

Where building on land isn't possible, engineers build on water. But as traffic and weather take their toll, every repair becomes a race against time. (S1, ep 6) 7+.

Investigators uncover a fatal flaw as they scrutinise the wreckage of a helicopter crash that killed all but one passenger. (S19, ep 7) 7+.

Three different systems could have prevented the crash of a commuter plane on a mountain top in Papua - but none of them did. Experts investigate why. (S19, ep 8) 7+.

On 19 February 1985, a China Airlines flight stalled in mid-air. The pilots managed to pull the plane out of its dive avoiding disaster. Why did it happen? 7+.

After clearing the Manx2 Flight 7100 for landing, controllers at Ireland's Cork Airport are shocked when it crashes into the runway. (S13, ep 9) 7+.

Investigators struggle to access the site where a Santa Barbara Airlines Flight crashed in 2008. Can they gather enough evidence to prove what went wrong? 7+.

Investigators uncover an alarming list of issues that caused a brand-new Kenya Airways plane's fatal crash into a mangrove swamp. (S19, ep 10) 7+.

When a two-billion-dollar Stealth Bomber crashes in Guam, the US Air Force investigate the most expensive aviation accident of all time. (S21, ep 3) 7+.

Secret School and Concealed Castle Cemetary: Hidden tunnels, lost schools, warrior graves and ancient cemeteries reveal remarkable stories buried beneath the modern world. (S1, ep 10) 7+.

Archaeologists investigate Santorini's eruption, searching for clues to date the disaster and uncover its devastating aftermath. (S1, ep 3) 7+.

They disappeared without a trace or a soul to tell their tale. Shipwrecks so mysterious, their fate became the stuff of legends, until now. (S4, ep 3) 7+.

Experts investigate inexplicable sightings of mystery creatures in the world's lakes and lochs. 7+.

Rivers of Mercury, Ethics of Anatomy, the Black Death: From ancient China to plague-ravaged Europe, history's turning points reshape life and death. (S1, ep 2) 18+.

On final approach to Islamabad in heavy fog, Airblue Flight 202 slams into the Himalayan foothills, killing all onboard. (2 of 10) 7+.

Tim and Fuzz leave four wheels behind to tackle the ambitious restoration of a 1973 Triumph Bonneville motorbike, belonging to ex-postmaster Ian. (S14, ep 3) 7+.

The boys tackle a Golf GTI Mk1 owned by one of Birmingham's biggest VW fans. Unlike previous builds, this isn't a typical restoration. (S14, ep 4) 7+.

Follow the crafting of Audi's new road car which, modelled on the explosively powerful, incredibly smooth R8 race car, is grabbing the attention of car fanatics across the world. 7+.

It's been estimated that one in ten Europeans are conceived in an Ikea bed. Venture behind the factory doors of the Scandinavian furniture behemoth. 7+.

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

Where building on land isn't possible, engineers build on water. But as traffic and weather take their toll, every repair becomes a race against time. (S1, ep 6) 7+.

A look at the errors that caused the deaths of 118 people in the 2001 Linate airport disaster, regarded as the worst accident in Italian aviation history. 7+.

The Glacier Express train in the Swiss Alps is an engineering marvel traveling over treacherous gorges and through huge mountain ranges. 7+.

Tim and Fuzz take on a 1992 Saab 900 Turbo belonging to former Electrical Engineer Pravesh, who has recently fallen ill. (S10, ep 5) 7+.

Go behind the scenes at one of the world's busiest airports and discover how its 90,000 staff ensure the safe arrival and timely departure of 57 million passengers a year. (S2, ep 1) 7+.

When the cockpit window of Sichuan Airlines 8633 explodes, the crew somehow battles gale-force winds and oxygen deprivation to safely land the plane. (S22, ep 6) 7+.

Attention turns to one of the most fearsome weapons of war, the Kamikaze, a tactic explored by the Nazis and perfected by the Japanese. 7+.

One of the greatest fortifications in warfare history, the campaign to breach Hitler's Siegfried Line cost 140,000 American casualties. (S2, ep 2) 7+.

Archaeologists follow a trail of clues to the tomb of Cleopatra, where, an unexpected mummy-find sheds new light. 7+.

In lakes and rivers of the modern United States, teams of explorers are discovering forgotten shipwrecks from the American Revolution. 7+.

The Nazis erected weather stations in remote and desolate areas. Were the Nazis working to harness the power of the Sun itself with a space-age Sun Gun? (S1, ep 6) 7+.

Experts uncover something startling that threatens cargo pilots worldwide when they investigate the crash of a US plane at Guantanamo Bay.

Three disasters are forensically dissected, from Challenger's fatal launch to a cable car tragedy and an ice rink roof collapse. (S2, ep 5) 7+.

Moments after taking off from Honolulu, the pilots of TransAir Flight 810 battle to keep their cargo plane airborne. (S24, ep 7 of 10) 7+.

British Airways Flight 38 was on final approach into London Heathrow Airport when it crashed just short of the runway on 17 January 2008. (S1, ep 10) 7+.

On 2 August 2005, Air France Flight 358 skidded off the runway in Toronto. An engine caught fire, trapping 300 passengers on the plane. How did they escape? 7+.